Com1/Com2 Rs232/422/485 Select; Com1/Com2 Rs232/Power Select - DFI HD330-Q87 User Manual

COM1/COM2 RS232/422/485 Select

COM 2
COM 2
COM 1
COM 1
JP2 (for COM 1) and JP11 (for COM 2) are used to configure the COM ports to RS232, RS422
(Full Duplex) or RS485. The pin functions of the COM ports will vary according to the jumper's
setting.
JP2/JP11
6 5
6 5
4
3
4
3
2
1
2
1
1-2 On: RS232 3-4 On: RS422
(default) Full Duplex
COM 1/ COM 2
1 2 3 4 5
1 2 3 4 5
6 7 8 9
6 7 8 9
RS232 RS422
Full Duplex
Chapter 2 Hardware Installation
Chapter 2
JP2
JP11
5
6
4 3
2
1
5-6 On: RS485
1 2 3 4 5
6 7 8 9
RS485
17

COM1/COM2 RS232/Power Select

5 3 1
6 4 2
1-3 (RI), 2-4 (DCD) On:
RS232 (default)
JP14
COM 2
COM 2
COM 1
COM 1
JP3 (for COM 1) and JP14 (for COM 2) are used to configure Serial COM ports to pure RS232
or RS232 with power. The pin functions of COM 1 and COM 2 will vary according to JP3's and
JP14's setting respectively.
5 3 1
6 4 2
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
JP3
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